diff --git a/Dockerfile b/Dockerfile
index 8b8a471..7532f6d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.2
+# syntax=docker/dockerfile:1.3
 FROM immawanderer/archlinux:linux-amd64
 
 ARG BUILD_DATE